Daily Maintenance: Drain solution line air dome by opening Air Dome Drain Valve, item 6, located
8.1
between the coil and pump. Always drain when machine is idle and switch is off. Since the air
dome acts as a cushion between the pump and the pressure In the coil, it should be drained each
day before starting and after every four (4) hours of continuous use. Failure to do this may result
in undue wear on check valves and pump bearings. Additionally, this air cushion prevents each pump
injection from hammering the coil and loosening bits of scale that could clog the nozzle tip.
Remove Rear Panel, item 33. Check pump for proper oil level and condition; check pump V-belt align-
8.1.2
ment and tension. Lubricate oil wicks in water pump every week with S.A.E. #30 non-detergent oil.
8.1.3
Check water supply tank for proper water level and water supply tank `On-Off'. valve (open for pres-
surized supply, closed for auxiliary water supply), Reinstall Rear Panel, item 33.
Remove Front Panel, item 18.
Check hoses, clamps and fittings for condition and leaks, Replace
8.1.4
Front Panel, item 18.
Inspect water supply and discharge steam hose for loose fittings, kinks, cracks, etc. and for leaks.
If damaged do not use, repair or replace.
Under all operating conditions, mineral deposits in the water will form scale within the heating
8.1.6
coils. Initial deposits are soft sludge, gradually hardening to form hard scale. The blowdown pro-
cedure (see Paragraph 8.3) performed daily (every 8 hours of operation) will remove most of this
soft sludge and eliminate excessive acid descaling procedures.
8.2
8.2.1
Clean Water Supply Tank, item 34, and Soap Supply Tank, item 27, Remove Drain Plug, item 16, and
Overflow-Drain Pipe, item 7 , and flush out with clear water, Replace plug and overflow-drain pipe.
Belt, item 22, must not slip when operating at maximum pressure.
Check pump V-belt tension.
8.2.2
Remove Plug, item 37, and flush out with clear water. Replace
8.2.3
Clean Water Supply Filter, item 37.
plug.
Carefully inspect all supply and steam hoses and fittings for kinks, cracks, signs of deterioration,
8.2.4
wear and tightness, repair or replace as required,
Check Fuel Oil Filter, item 1,
If dirty, remove bowl and screen, clean and replace,
8.2.5
Check for coil restriction (scale). Remove nozzle from Cleaning Gun, Item 38, Turn on Pump Switch,
8.2.6
item 11, check Coil Inlet Pressure Gauge, item 8, with Coil Outlet Pressure Gauge, item 9. If
differential is 40 PSI or more, the coil should be descaled (See Descaling Procedure, paragraph 8.4).
CAUTION
Improper procedure can damage equipment, hose and cleaning gun assembles, Only authorized person-
nel who have READ and UNDERSTAND this procedure should be permitted to perform this function.
8.3.1
If operating, shut down unit in normal manner. See "Stopping the Cleaner", Paragraph 7.0. Secure
cleaning gun with gun "on-off" valve in "off" position, and remove BLOWDOWN Port Sealing Plug,
item 14.
SONNEL ARE WITHIN A TEN (10) FOOT RADIUS FROM BLOWDOWN PORT SIDE OF UNIT.
8.3.2
Soap Metering Valve, item 4, and Soap Tank Fill and Mix Valve, item 2, Start cleaner in normal
manner. See "Starting the Cleaner", Paragraph 6.0.
NOTE:
Water should discharge from the blowdown port only, cleaning gun must remain closed during
entire operation to avoid possible excessive heat damage to steam hose or whipping of hose
and gun.
8.3.3
Turn on Burner Switch, item 10, and observe discharge from a secure position, When steam or flashes
of steam appear at blowdown port, close Blowdown Valve, item 23, and depress Pushbutton Switch, item
19, for not longer than ONE MINUTE or until dry steam appears from Blowdown Port.
8.3.4
Next, quickly turn off Burner Switch, item 10, and open Blowdown Valve, item 23. Cold Hater enter-
ing the very hot coil will flash into steam, loosening and blowing out obdurate scale formation.
Allow cleaner cooperate (fire off) until cool water emerges from Blowdown Port. Turn off Pump
Switch, item 11.
(See note)
